Title (en)

FILTER ASSEMBLY FOR A SERVOVALVE

Title (de)

FILTERANORDNUNG FÜR EIN SERVOVENTIL

Title (fr)

ENSEMBLE FILTRE POUR SERVOVALVE

Publication

EP 4141263 A1 20230301 (EN)

Application

EP 21461579 A 20210825

Priority

EP 21461579 A 20210825

Abstract (en)

A filter assembly for a servo valve comprising: a first fluid nozzle (70') defining a first fluid passage therethrough between a first fluid inlet and a first fluid outlet; a second fluid nozzle (80') defining a second fluid passage therethrough between a second fluid inlet and a second fluid outlet; the first and second fluid nozzles arranged in end to end abutment with each other to form a tubular fluid nozzle unit in which the first and second fluid inlets are adjacent each other, and the first and second fluid passages align to form a common fluid passage through the tubular fluid nozzle unit, the first fluid outlet being at a first end of the tubular fluid nozzle unit and the second fluid passage being at a second, end of the tubular fluid nozzle unit; a recess (320) formed around an outer surface of the tubular fluid nozzle unit in a region where the first and second fluid inlets are located; and a perforated filter member (500) provided in the recess around the tubular fluid nozzle unit and across the first and second fluid inlets.

IPC 8 full level

F15B 13/043 (2006.01); B01D 36/00 (2006.01); F15B 21/041 (2019.01)

CPC (source: EP US)

B01D 29/05 (2013.01 - EP); F15B 13/0438 (2013.01 - EP US); F15B 21/041 (2013.01 - EP US); F16K 31/0613 (2013.01 - US); F16K 31/124 (2013.01 - US); F15B 2211/615 (2013.01 - EP)

Citation (applicant)

• GB 2104249 A 19830302 - MOOG INC [US]
• US 2015047729 A1 20150219 - KOPP JOHN [US], et al
• US 9309900 B2 20160412 - KOPP JOHN [US]

Citation (search report)

• [XYI] US 2861550 A 19581125 - HANNA CLINTON R, et al
• [Y] CN 104454729 A 20150325 - JINCHENG NANJING ELECTROMECHANICAL HYDRAULIC PRESSURE ENG RES CT AVIAT IND CORP CHINA
• [A] EP 0119752 A1 19840926 - PARKER HANNIFIN CORP [US]

Designated contracting state (EPC)

AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

Designated extension state (EPC)

BA ME

Designated validation state (EPC)

KH MA MD TN

DOCDB simple family (publication)

EP 4141263 A1 20230301; US 11852174 B1 20231226

DOCDB simple family (application)

EP 21461579 A 20210825; US 202217895673 A 20220825